PPP3CA

Protein phosphatase 3 catalytic subunit alpha Q08209 PP2BA_HUMAN
Protein Coding Chr 4 4q24 Swiss-Prot reviewed Entrez 5530
Mutations
1,221
CL 169 · Tissue 1,024
Samples
296
CL 64 · Tissue 226
Peptides
239
unique mutant peptides
Transcripts
5
isoforms mutated

Stats by Source

Total, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)

How the counts split by source
Stats by Source

Total = all mutations for this gene across every source.

Cell line = COSMIC Cell Lines Project + DepMap + PubMed.

Tissue = COSMIC primary-tissue (patient tumour) samples.

Total can exceed cell line + tissue: COSMIC tissue-derived models sit only in global, and a peptide can be shared across both.

TotalCell lineTissue
Mutations1,2211691,024
Samples29664226
Peptides23940201

Function

PPP3CA · Protein phosphatase 3 catalytic subunit alpha

Enables several functions, including ATPase binding activity; calmodulin binding activity; and calmodulin-dependent protein phosphatase activity. Involved in several processes, including calcineurin-NFAT signaling cascade; peptidyl-serine dephosphorylation; and response to calcium ion. Located in several cellular components, including cytosol; dendritic spine; and nucleoplasm. Part of calcineurin complex. Colocalizes with cytoplasmic side of plasma membrane. Implicated in developmental and epileptic encephalopathy 91. Biomarker of focal segmental glomerulosclerosis and schizophrenia. [provided by Alliance of Genome Resources, Apr 2022]

Isoforms & Proteins

5 transcripts · UniProt mapping is sequence-verified (AA-safe)

About the isoform mapping
Isoforms & Proteins

Each Ensembl transcript (ENST) this gene is mutated on, with its matched UniProt accession.

The mapping is sequence-verified: the UniProt sequence is identical to the transcript translation, so amino-acid positions line up exactly. A * marks an unreviewed (TrEMBL) entry.

Counts are mutations and unique mutant peptides on each transcript.

TranscriptUniProtMutationsPeptides
ENST00000394854 Q08209 308 217
ENST00000394853 Q08209-2 265 196
ENST00000323055 Q08209-3 251 184
ENST00000507176 E7ETC2* 236 171
ENST00000512215 Q08209-4 161 112

Gene Properties

Type
Protein Coding
Chromosome
4
Cytoband
4q24
Entrez ID
Aliases
ACCIIDCALNCALNACALNA1CNA1DEE91

Recurrent Mutations

All 217 amino-acid changes on canonical ENST00000394854 · needle height = samples · drag the mini-map to zoom

What this lollipop shows
Recurrent Mutations

A lollipop / needle plot – the standard way to show recurrent mutations along a protein (as used by cBioPortal and MutationMapper).

X-axis = amino-acid position in the protein.

Needle height & head size = how often that exact amino-acid change was observed (its recurrence). Tall/large heads are mutational hotspots.

The most recurrent changes are labelled; hover any needle for the change, position and counts.

Mutation frequency across cancer types

% of samples with a missense/complex mutation in PPP3CA · cell line vs tissue

How this frequency is counted
Cancer-type mutation frequency

For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in PPP3CA – counted as distinct samples (a sample counts once no matter how many mutations it has).

Split into cell line and tissue; each cell shows mutated / total and the percentage. Cohorts with <20 samples are omitted. Ordered by combined frequency.

Cancer typeCell linesTissue samples
T-Lymphoblastic Leukemia
2/40 5%
0/0 0%
Endometrial Carcinoma
4/42 10%
14/612 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Melanoma
11/210 5%
32/1899 2%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Ovarian Carcinoma
7/109 6%
12/998 1%
Non-Small Cell Lung Carcinoma
6/304 2%
23/1390 2%
Burkitts Lymphoma
3/32 9%
0/196 0%
Squamous Cell Lung Carcinoma
2/57 4%
7/810 1%
Colorectal Carcinoma
3/143 2%
27/3239 1%
Bladder Carcinoma
1/58 2%
8/956 1%
Other Solid Cancers
0/94 0%
14/1515 1%
Adrenocortical Carcinoma
0/3 0%
1/112 1%
Neuroendocrine Tumour
4/154 3%
2/577 0%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Gastric Carcinoma
2/74 3%
12/1809 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Head and Neck Carcinoma
0/85 0%
9/1574 1%
Hepatocellular Carcinoma
0/46 0%
11/2210 0%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Cervical Carcinoma
0/35 0%
2/422 0%
Thyroid Gland Carcinoma
0/45 0%
7/1592 0%
Other Sarcomas
0/69 0%
3/699 0%
Esophageal Squamous Cell Carcinoma
3/51 6%
6/2550 0%
Breast Carcinoma
0/144 0%
11/3264 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
Prostate Carcinoma
4/13 31%
2/2105 0%
Kidney Carcinoma
1/85 1%
4/1862 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%

Mutation Distribution

Where PPP3CA is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in PPP3CA were found in each tissue, across the whole database.

Each bar is a tissue (cell-line and tissue names are merged to the standard tissue), split into cell line and tissue (patient tumour) contributions.

This shows the cancer-context where this gene is recurrently altered.

GTEx Expression

Median TPM across 54 healthy tissues

GTEx Portal ↗
About the expression data
GTEx Expression

Median gene expression (TPM) in normal, non-cancer human tissues from the GTEx project.

Useful for judging tumour specificity – a strong neoantigen target ideally comes from a gene with low expression in healthy tissues.

Scroll or drag the mini-axis below the chart to browse all tissues.

Mutations

All 1,221 mutations in PPP3CA

About the mutation list
Mutations

Every mutation record for this gene, across all samples and sources.

The Sample column links to the cell line (cell-line samples) or the tissue type (tissue samples).

Use the Type / Source filters, the search box, and column sorting to explore; each CAN-IMMUNE ID opens the full mutation & peptide view.

IDSampleTranscriptAA Change CDSTypeSourceMutant PeptideWild-type Peptide